Research of unsupervised machine learning methods for data analy-sis and preparation and modern approaches to building machine learning models – automated machine learning systems

Data preprocessing in machine learning tasks is an important step in the data mining process. To automate the data processing process and make it more suitable for the data under study, data preprocessing methods are implemented in AutoML systems. The purpose of the work is to compare the quality of work of AutoML systems for building a target model and training it. Study of the operation of modern AutoML systems has been conducted. Recommendations have been proposed for the use of unsupervised machine learning algorithms for the tasks of filling gaps, detecting and removing anomalies, and reducing the dimensionality of a data set. The conducted research allows us to determine the applicability of modern AutoML systems for building a machine learning model, to better understand the features of the systems, and to find out the possibility of their use in solving practical problems.